Exploring the Possibility of Time Traveling at Light Speed

In summary, the conversation revolves around the topic of time travel and the challenges and theories surrounding it. The speaker questions how it would be possible to go back in time if we could travel faster than time itself. They suggest the idea of traveling slower than time, but recognize the difficulty in achieving a negative speed. They also mention a book by Stephen Hawking as a good resource for gaining a better understanding of time travel.
  • #1
darignac
1
0
Just read about the advances on traveling at the speed of light. I have a problem about the whole "time travelling" theory. If (or maybe when) the human race can travel at a speed faster than time itself, how could we possibly go back in time? Surely going faster than time would mean that you would only go forward and not back in time?
Perhaps we could travel slower than time. A negative speed would be much harder to obtain than a possitive speed surely.
I know that you are the people to explain to me ( please be nice) about this.
Regards
Vince
 
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  • #2
If (or maybe when) the human race can travel at a speed faster than time itself, how could we possibly go back in time?

I'm not sure about the specifics, but time travel can occur within a kind of (closed)feedback (time)loop where backwards movement is possible.

There is a book by Stephen Hawking called The Universe in a Nutshell where he discusses time travel. Very good read to gain a basic understanding about the difficulties about time travel.

http://en.wikipedia.org/wiki/The_Universe_in_a_Nutshell
 
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  • #3
darignac said:
Just read about the advances on traveling at the speed of light. I have a problem about the whole "time travelling" theory.

OK, what did you read, and where? It sounds like you read something that was a bit garbled, because, for starters, you can't travel at the speed of light.
 

1. Can time travel at light speed really be possible?

There is currently no scientific evidence to support the idea that time travel at light speed is possible. However, some theories, like Einstein's theory of relativity, suggest that it could be theoretically possible under certain conditions.

2. What is the theory behind time travel at light speed?

The theory behind time travel at light speed is based on Einstein's theory of special relativity. This theory suggests that time is relative and can be affected by factors such as gravity and speed. According to this theory, if an object travels at the speed of light, time would slow down for that object compared to a stationary observer.

3. What are the challenges of time travel at light speed?

One of the biggest challenges of time travel at light speed is the immense amount of energy that would be required. According to Einstein's equations, as an object approaches the speed of light, its mass increases infinitely, making it impossible to reach the speed of light. Additionally, time dilation effects could cause potential paradoxes, making it difficult to determine the consequences of traveling at light speed.

4. Are there any examples of time travel at light speed in popular culture?

There are many examples of time travel at light speed in popular culture, such as in movies like "Interstellar" and "Star Trek". However, these examples are purely fictional and are not based on scientific evidence.

5. Is there any ongoing research on time travel at light speed?

While there are ongoing studies and research on the concept of time travel, there is currently no research being conducted specifically on time travel at light speed. Scientists are still trying to understand the fundamental principles of time and space before tackling the complexities of time travel.

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